egroupware_official/api/js/etemplate/Et2Vfs/Et2VfsSelectDialog.ts

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/**
* EGroupware eTemplate2 - File selection WebComponent
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package api
* @link https://www.egroupware.org
* @author Nathan Gray
*/
import {Et2InputWidget} from "../Et2InputWidget/Et2InputWidget";
import {html, LitElement, nothing, PropertyValues, render, TemplateResult} from "lit";
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import shoelace from "../Styles/shoelace";
import styles from "./Et2VfsSelect.styles";
import {property} from "lit/decorators/property.js";
import {state} from "lit/decorators/state.js";
import {ifDefined} from "lit/directives/if-defined.js";
import {classMap} from "lit/directives/class-map.js";
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import {repeat} from "lit/directives/repeat.js";
import {SelectOption} from "../Et2Select/FindSelectOptions";
import {DialogButton, Et2Dialog} from "../Et2Dialog/Et2Dialog";
import {HasSlotController} from "../Et2Widget/slot";
import {egw, IegwAppLocal} from "../../jsapi/egw_global";
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import {Et2Select} from "../Et2Select/Et2Select";
import {Et2VfsSelectRow} from "./Et2VfsSelectRow";
import {Et2VfsPath} from "./Et2VfsPath";
import {SearchMixin, SearchResult, SearchResultElement, SearchResultsInterface} from "../Et2Widget/SearchMixin";
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/**
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* @summary Select files (including directories) from the VFS.
*
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* The dialog does not do anything with the files, just handles the UI to select them.
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*
* @dependency et2-box
* @dependency et2-button
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* @dependency et2-dialog
* @dependency et2-image
* @dependency et2-searchbox
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* @dependency et2-select
* @dependency et2-vfs-select-row
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*
* @slot title - Optional additions to title.
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* @slot toolbar - Toolbar containing controls for search & navigation
* @slot prefix - Before the toolbar
* @slot suffix - Like prefix, but after
* @slot help-text - Text that describes how to use the input. Alternatively, you can use the `help-text` attribute.
* @slot footer - Customise the dialog footer
*
* @event change - Emitted when the control's value changes.
*
* @csspart toolbar - controls at the top
* @csspart path - Et2VfsPath control
* @csspart listbox - The list of files
* @csspart mimefilter - Mime filter select
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* @csspart form-control-help-text - The help text's wrapper.
*
*/
type Constructor<T = {}> = new (...args : any[]) => T;
export class Et2VfsSelectDialog
extends SearchMixin<Constructor<any> & typeof LitElement, FileInfo, FileResultsInterface>(Et2InputWidget(LitElement))
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{
static get styles()
{
return [
shoelace,
...super.styles,
styles
];
}
/** Currently selected files */
@property() value : string[] = [];
/**
* The dialogs label as displayed in the header.
* You should always include a relevant label, as it is required for proper accessibility.
*/
@property() title : string = "Select";
/**
* Dialog mode
* Quickly sets button label, multiple, selection and for "select-dir", mime-type
**/
@property({type: String}) mode : "open" | "open-multiple" | "saveas" | "select-dir";
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/** Button label */
@property({type: String}) buttonLabel : string = "Select";
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/** Provide a suggested filename for saving */
@property() filename : string = "";
/** Allow selecting multiple files */
@property({type: Boolean}) multiple = false;
/** Start path in VFS. Leave unset to use the last used path. */
@property() path : string = "";
/** Limit display to the given mime-type */
@property() mime : string | string[] | RegExp = "";
/** List of mimetypes to allow user to filter. */
@property({type: Array}) mimeList : SelectOption[] = [
{
value: "/(application\\/vnd.oasis.opendocument.text|application\\/vnd.openxmlformats-officedocument.wordprocessingml.document)/i",
label: "Documents"
},
{
value: "/(application\\/vnd.oasis.opendocument.spreadsheet|application\\/vnd.openxmlformats-officedocument.spreadsheetml.sheet)/i",
label: "Spreadsheets"
},
{value: "image/", label: "Images"},
{value: "video/", label: "Videos"},
{value: "message/rfc822", label: "Email"}
];
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/** The select's help text. If you need to display HTML, use the `help-text` slot instead. */
@property({attribute: 'help-text'}) helpText = '';
@state() open : boolean = false;
@state() currentResult : Et2VfsSelectRow;
@state() selectedFiles : Et2VfsSelectRow[] = [];
@state() _pathWritable : boolean = false;
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// SearchMixinInterface //
@property() searchUrl : string = "EGroupware\\Api\\Etemplate\\Widget\\Vfs::ajax_vfsSelectFiles";
// End SearchMixinInterface //
// Still need some server-side info
protected _serverContent : Promise<any> = Promise.resolve({});
private static SERVER_URL = "EGroupware\\Api\\Etemplate\\Widget\\Vfs::ajax_vfsSelect_content";
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protected readonly hasSlotController = new HasSlotController(<LitElement><unknown>this, 'help-text', 'toolbar', 'footer');
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// @ts-ignore different types
protected _appList : SelectOption[] = this.egw().link_app_list("query") ?? [];
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// Internal accessors
get _dialog() : Et2Dialog { return this.shadowRoot.querySelector("et2-dialog");}
get _filenameNode() : HTMLInputElement { return this.shadowRoot.querySelector("#filename");}
get _fileNodes() : Et2VfsSelectRow[] { return Array.from(this.shadowRoot.querySelectorAll("et2-vfs-select-row"));}
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get _resultNodes() : (HTMLElement & SearchResultElement)[] { return <(HTMLElement & SearchResultElement)[]><unknown>this._fileNodes;}
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get _searchNode() : HTMLInputElement { return this.shadowRoot.querySelector("#search");}
get _pathNode() : Et2VfsPath { return this.shadowRoot.querySelector("#path");}
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get _mimeNode() : Et2Select { return this.shadowRoot.querySelector("#mimeFilter");}
/*
* List of properties that get translated
* Done separately to not interfere with properties - if we re-define label property,
* labels go missing.
*/
static get translate()
{
return {
...super.translate,
title: true,
buttonLabel: true
}
}
constructor(parent_egw? : string | IegwAppLocal)
{
super();
if(parent_egw)
{
this._setApiInstance(parent_egw);
}
// Use filemanager translations
this.egw().langRequireApp(this.egw().window, "filemanager", () => {this.requestUpdate()});
this.handleClose = this.handleClose.bind(this);
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this.handleCreateDirectory = this.handleCreateDirectory.bind(this);
}
transformAttributes(attr)
{
super.transformAttributes(attr);
// Start request to get server-side info
let content = {};
let attrs = {
mode: this.mode,
label: this.buttonLabel,
path: this.path || null,
mime: this.mime || null,
name: this.title
};
return this.egw().request(this.egw().link(this.egw().ajaxUrl(this.egw().decodePath(Et2VfsSelectDialog.SERVER_URL))),
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[content, attrs]).then((results) =>
{
debugger;
});
}
connectedCallback()
{
super.connectedCallback();
if(this.path == "")
{
this.path = this.egw().getLocalStorageItem(this.egw().appName, this.constructor.name + "Path") ||
<string>this.egw()?.preference("startfolder", "filemanager") ||
"~";
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}
}
async getUpdateComplete()
{
const result = await super.getUpdateComplete();
// Need to wait for server content
await this._serverContent;
return result;
}
firstUpdated()
{
this._dialog.updateComplete.then(() =>
{
this._dialog.panel.style.width = "60em";
this._dialog.panel.style.height = "40em";
});
// Get file list
if(this.open)
{
debugger;
this.startSearch();
}
}
protected willUpdate(changedProperties : PropertyValues)
{
super.willUpdate(changedProperties);
if(changedProperties.has("mode"))
{
this.multiple = this.mode == "open-multiple";
}
if(changedProperties.has("path"))
{
this.startSearch();
}
}
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public setPath(path)
{
const oldValue = this.path;
// Selection doesn't stay across sub-dirs. Notify user we dropped them.
if(this.value.length && path != oldValue)
{
const length = this.value.length;
this.value = [];
this.updateComplete.then(() =>
{
render(html`
<sl-alert duration="5000" closable open>
<sl-icon slot="icon" name="info-circle"></sl-icon>
${this.egw().lang("Selection of files can only be done in one folder. %1 files unselected.", length)}
</sl-alert>`, <HTMLElement><unknown>this);
});
}
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if(path == '..')
{
path = this.dirname(this.path);
}
this._pathNode.value = this.path = path;
this.requestUpdate("path", oldValue);
this.currentResult = null;
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return this._searchPromise;
}
/**
* Get directory of a path
*
* @param {string} _path
* @returns string
*/
public dirname(_path)
{
let parts = _path.split('/');
parts.pop();
return parts.join('/') || '/';
}
/**
* Get file information of currently displayed paths
*
* Returns null if the path is not currently displayed
* @param _path
*/
public fileInfo(_path)
{
return this._searchResults.find(f => f.path == _path);
}
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/**
* Shows the dialog.
*/
public show()
{
this.open = true;
if(this.path && this._searchResults.length == 0)
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{
this.startSearch();
}
return Promise.all([
this.updateComplete,
this._searchPromise
]).then(() =>
{
return this._dialog.show();
}).then(() =>
{
// Set current file to first value
if(this.value && this.value[0])
{
this.setCurrentResult(this._fileNodes.find(node => node.value.path == this.value[0]));
}
});
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}
/**
* Hides the dialog.
*/
public hide()
{
this.open = false;
return this._dialog.hide();
}
async getComplete() : Promise<[number, Object]>
{
await this.updateComplete;
const value = await this._dialog.getComplete();
await this.handleClose();
value[1] = this.value;
return value;
}
protected localSearch<FileInfo>(search : string, searchOptions : object, localOptions : FileInfo[] = []) : Promise<FileInfo[]>
{
return super.localSearch(search, {...searchOptions, mime: this.mime}, localOptions);
}
public searchMatch<FileInfo>(search : string, searchOptions : Object, option : FileInfo) : boolean
{
let result = super.searchMatch(search, searchOptions, option);
// Add in local mime check
if(result && searchOptions.mime)
{
result = result && option.mime.match(searchOptions.mime);
}
return result;
}
remoteSearch<FileInfo>(search : string, options : object) : Promise<FileInfo[]>
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{
// Include a limit, even if options don't, to avoid massive lists breaking the UI
let sendOptions = {
path: this.path,
mime: this.mime,
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num_rows: 100,
...options
}
return super.remoteSearch(search, sendOptions);
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}
processRemoteResults<FileInfo>(results) : FileInfo[]
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{
const result = super.processRemoteResults(results);
if(typeof results.path === "string")
{
// Something like a redirect or link followed - server is sending us a "corrected" path
this.path = results.path;
}
if(typeof results.writable !== "undefined")
{
this._pathWritable = results.writable;
this.requestUpdate("_pathWritable");
}
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this.helpText = results?.message ?? "";
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return result;
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}
/**
* Inject application specific egw object with loaded translations into the dialog
*
* @param {string|egw} _egw_or_appname egw object with already loaded translations or application name to load translations for
*/
_setApiInstance(_egw_or_appname ? : string | IegwAppLocal)
{
if(typeof _egw_or_appname == 'undefined')
{
// @ts-ignore
_egw_or_appname = egw_appName;
}
// if egw object is passed in because called from et2, just use it
if(typeof _egw_or_appname != 'string')
{
this.__egw = _egw_or_appname;
}
// otherwise use given appname to create app-specific egw instance and load default translations
else
{
this.__egw = egw(_egw_or_appname);
this.egw().langRequireApp(this.egw().window, _egw_or_appname);
}
}
private async handleClose()
{
// Should already be complete, we want the button
let dialogValue = await this._dialog.getComplete();
switch(this.mode)
{
case "select-dir":
// If they didn't pick a specific directory and didn't cancel, use the current directory
this.value = this.value.length ? this.value : [this.path];
break;
case "saveas":
// Saveas wants a full path, including filename
this.value = [this.path + "/" + this._filenameNode.value ?? this.filename];
// Check for existing file, ask what to do
if(this.fileInfo(this.value[0]))
{
let result = await this.overwritePrompt(this._filenameNode ?? this.filename);
if(result == null)
{
return;
}
this.value = [this.path + "/" + result];
}
break;
}
// Save path for next time
this.egw().setLocalStorageItem(this.egw().appName, this.constructor.name + "Path", this.path);
this.dispatchEvent(new Event("change", {bubbles: true}));
}
/**
* User tried to saveas when we can see that file already exists. Prompt to overwrite or rename.
*
* We offer a suggested new name by appending "(#)", and give back either the original filename, their
* modified filename, or null if they cancel.
*
* @param filename
* @returns {Promise<[number|string, Object]|null>} [Button,filename] or null if they cancel
* @private
*/
private overwritePrompt(filename) : Promise<[number | string, object] | null>
{
// Make a filename suggestion
const parts = filename.split(".");
const extension = parts.pop();
const newName = parts.join(".");
let counter = 0;
let suggestion;
do
{
counter++;
suggestion = `${newName} (${counter}).${extension}`;
}
while(this.fileInfo(suggestion))
// Ask about it
const saveModeDialogButtons = [
{
label: self.egw().lang("Yes"),
id: "overwrite",
class: "ui-priority-primary",
"default": true,
image: 'check'
},
{label: self.egw().lang("Rename"), id: "rename", image: 'edit'},
{label: self.egw().lang("Cancel"), id: "cancel"}
];
return Et2Dialog.show_prompt(null,
self.egw().lang('Do you want to overwrite existing file %1 in directory %2?', filename, this.path),
self.egw().lang('File %1 already exists', filename),
suggestion, saveModeDialogButtons, null).getComplete().then(([button, value]) =>
{
if(button == "cancel")
{
return null;
}
return button == "rename" ? value.value : filename;
});
}
/**
* Sets the selected files
* @param {Et2VfsSelectRow | Et2VfsSelectRow[]} file
* @private
*/
private setSelectedFiles(file : Et2VfsSelectRow | Et2VfsSelectRow[])
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{
const newSelectedOptions = Array.isArray(file) ? file : [file];
// Clear existing selection
this._fileNodes.forEach(el =>
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{
el.selected = false;
el.requestUpdate("selected");
});
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// Set the new selection
if(newSelectedOptions.length)
{
newSelectedOptions.forEach(el =>
{
el.selected = true;
el.requestUpdate("selected");
});
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}
// Update selection, value, and display label
this.searchResultSelected();
}
/**
* Toggles a search result's selected state
*/
protected toggleResultSelection(result : HTMLElement & SearchResultElement, force? : boolean)
{
if(!this.multiple)
{
this._resultNodes.forEach(n =>
{
n.selected = false;
n.requestUpdate("selected");
});
}
super.toggleResultSelection(result, force);
}
/**
* This method must be called whenever the selection changes. It will update the selected file cache, the current
* value, and the display value
*/
protected searchResultSelected()
{
super.searchResultSelected();
// Update the value
if(this.multiple)
{
this.value = this.selectedResults.map(el => el.value.path);
}
else
{
this.value = (this.selectedResults?.length ? [this.selectedResults[0].value.path] : []) ?? [];
}
}
/**
* Create a new directory in the current one
* @param {MouseEvent | KeyboardEvent} event
* @returns {Promise<void>}
* @protected
*/
protected async handleCreateDirectory(event : MouseEvent | KeyboardEvent)
{
// Get new directory name
let [button, value] = await Et2Dialog.show_prompt(
null, this.egw().lang('New directory'), this.egw().lang('Create directory')
).getComplete();
let dir = value.value;
if(button && dir)
{
this.egw().request('EGroupware\\Api\\Etemplate\\Widget\\Vfs::ajax_create_dir', [dir, this.path])
.then((msg) =>
{
this.egw().message(msg);
this.setPath(this.path + '/' + dir);
});
}
}
/**
* SearchMixin handles the actual selection, we just reject directories here.
*
* @param {MouseEvent} event
*/
handleFileClick(event : MouseEvent)
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{
const target = event.target as HTMLElement;
const file : Et2VfsSelectRow = target.closest('et2-vfs-select-row');
const oldValue = this.value;
if(file && !file.disabled)
{
// Can't select a directory normally
if(file.value.isDir)
{
this.setPath(file.value.path);
event.preventDefault();
event.stopPropagation();
return;
}
// can't select anything in "saveas", but set the file name
else if(this.mode == "saveas")
{
this._filenameNode.value = file.value.name;
event.preventDefault();
event.stopPropagation();
this.updateComplete.then(() => this._filenameNode.focus());
return;
}
// Set focus after updating so the value is announced by screen readers
//this.updateComplete.then(() => this.displayInput.focus({ preventScroll: true }));
}
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}
handleKeyDown(event)
{
// Ignore selects
if(event.target.tagName.startsWith('ET2-SELECT'))
{
return;
}
// Grab any keypresses, avoid EgwAction reacting on them too
event.stopPropagation()
// Navigate options
if(["ArrowUp", "ArrowDown", "Home", "End"].includes(event.key))
{
const files = this._fileNodes;
const currentIndex = files.indexOf(this.currentResult);
let newIndex = Math.max(0, currentIndex);
// Prevent scrolling
event.preventDefault();
if(event.key === "ArrowDown")
{
newIndex = currentIndex + 1;
if(newIndex > files.length - 1)
{
return this._mimeNode.focus();
}
}
else if(event.key === "ArrowUp")
{
newIndex = currentIndex - 1;
if(newIndex < 0)
{
return this._pathNode.focus();
}
}
else if(event.key === "Home")
{
newIndex = 0;
}
else if(event.key === "End")
{
newIndex = files.length - 1;
}
this.setCurrentResult(files[newIndex]);
}
else if([" "].includes(event.key) && this.currentResult)
{
// Prevent scrolling
event.preventDefault();
return this.handleFileClick(event);
}
else if(["Enter"].includes(event.key) && this.currentResult && !this.currentResult.disabled)
{
return this.handleFileClick(event);
}
else if(["Escape"].includes(event.key))
{
this.open = false;
}
}
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handleSearchKeyDown(event)
{
clearTimeout(this._searchTimeout);
// Up / Down navigates options
if(['ArrowDown', 'ArrowUp'].includes(event.key) && this._searchResults.length)
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{
return super.handleSearchKeyDown(event);
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}
// Start search immediately
else if(event.key == "Enter")
{
return super.handleSearchKeyDown(event);
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}
else if(event.key == "Escape")
{
super.handleSearchKeyDown(event);
event.preventDefault();
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this.value = [];
this.hide();
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return;
}
// Start the search automatically if they have something typed
if(this._searchNode.value.length > 0)
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{
this._searchTimeout = window.setTimeout(() => {this.startSearch()}, Et2VfsSelectDialog.SEARCH_TIMEOUT);
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}
}
protected toolbarTemplate() : TemplateResult
{
return html`
<div class="et2_toolbar">
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<et2-button statustext="Go to your home directory" id="home"
image="filemanager/gohome"
aria-label=${this.egw().lang("Go to your home folder")}
noSubmit="true"
@click=${() => this.setPath("~")}
></et2-button>
<et2-button statustext="Up" id="up"
image="filemanager/goup" noSubmit="true" aria-label=${this.egw().lang("Up")}
@click=${() => this.setPath("..")}
>
</et2-button>
<et2-button statustext="Favorites" id="favorites"
aria-label=${this.egw().lang("Favorites")}
image="filemanager/fav_filter" noSubmit="true"
@click=${() => this.setPath("/apps/favorites")}
></et2-button>
<et2-select id="app" emptyLabel="${this.egw().lang("Applications")}" noLang="1"
.select_options=${this._appList}
@change=${(e) => this.setPath("/apps/" + e.target.value)}
>
</et2-select>
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<et2-button statustext="Create directory" id="createdir" class="createDir"
arial-label=${this.egw().lang("Create directory")}
?disabled=${!this._pathWritable}
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noSubmit="true"
image="filemanager/button_createdir"
roImage="filemanager/createdir_disabled"
@click=${this.handleCreateDirectory}
></et2-button>
<file id="upload_file" statustext="upload file" progress_dropdownlist="true" multiple="true"
?disabled=${!this._pathWritable}
onFinish="app.vfsSelectUI.storeFile"
></file>
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<et2-searchbox id="search"
@keydown=${this.handleSearchKeyDown}
@sl-clear=${this.startSearch}
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></et2-searchbox>
</div>
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`;
}
protected resultTemplate(file : FileInfo, index)
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{
const classes = file.class ? Object.fromEntries((file.class).split(" ").map(k => [k, true])) : {};
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return html`
<et2-vfs-select-row
class=${classMap({
...classes
})}
?disabled=${file.disabled || this.mode == "select-dir" && !file.isDir}
.selected=${this.value.includes(file.path)}
.value=${file}
@mouseup=${this.handleFileClick}
></et2-vfs-select-row>`;
}
protected noResultsTemplate() : TemplateResult
{
return html`
<div class="search__empty vfs_select__empty">
<et2-image src="filemanager"></et2-image>
${this.egw().lang("no files in this directory.")}
</div>`;
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}
protected mimeOptionsTemplate()
{
return html``;
}
protected footerTemplate()
{
let image = "check";
switch(this.mode)
{
case "saveas":
image = "save_new";
break;
}
const buttons = [
{id: "ok", label: this.buttonLabel, image: image, button_id: Et2Dialog.OK_BUTTON},
{id: "cancel", label: this.egw().lang("cancel"), image: "cancel", button_id: Et2Dialog.CANCEL_BUTTON}
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];
return html`
<slot name="footer" slot="footer"></slot>
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${repeat(buttons, (button : DialogButton) => button.id, (button, index) =>
{
// style=order is to allow slotted buttons an opportunity to choose where they go.
// Default is they'll go before our primary button
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return html`
<et2-button id=${button.id}
button_id=${button.button_id}
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class="et2_button et2_vfs__button"
style="order: ${(index + 1) * 2}"
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label=${button.label}
variant=${index == 0 ? "primary" : "default"}
slot="footer"
.image=${ifDefined(button.image)}
.noSubmit=${true}
>${button.label}
</et2-button>
`
})}`;
}
render()
{
const hasHelpTextSlot = this.hasSlotController.test('help-text');
const hasFooterSlot = this.hasSlotController.test('footer');
const hasToolbarSlot = this.hasSlotController.test('toolbar');
const hasHelpText = this.helpText ? true : !!hasHelpTextSlot;
const hasToolbar = !!hasToolbarSlot;
const hasFilename = this.mode == "saveas";
const mime = typeof this.mime == "string" ? this.mime : (this.mimeList.length == 1 ? this.mimeList[0].value : "");
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return html`
<et2-dialog
.isModal=${true}
.destroyOnClose=${false}
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.title=${this.title}
.open=${this.open}
@keydown=${this.handleKeyDown}
@close=${this.handleClose}
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>
${hasFilename ? html`
<et2-textbox id="filename"
.value=${this.filename}
@change=${(e) => {this.filename = e.target.value;}}
>
</et2-textbox>` : nothing}
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<div
part="toolbar"
id="toolbar"
class="vfs_select__toolbar"
>
<slot name="prefix"></slot>
<slot name="toolbar">${hasToolbar ? nothing : this.toolbarTemplate()}</slot>
<slot name="suffix"></slot>
</div>
<div
part="path"
>
<et2-vfs-path id="path"
.value=${this.path}
@change=${() => {this.setPath(this._pathNode.value)}}
></et2-vfs-path>
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</div>
${this.searchResultsTemplate()}
<slot></slot>
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<sl-visually-hidden>
<et2-label for="mimeFilter">${this.egw().lang("mime filter")}</et2-label>
</sl-visually-hidden>
<et2-select
id="mimeFilter"
part="mimefilter"
class="vfs_select__mimefilter"
?readonly=${this.mimeList.length == 1}
.emptyLabel=${this.egw().lang("All files")}
.select_options=${this.mimeList}
.value=${mime}
@change=${(e) =>
{
this.mime = e.target.value;
this.startSearch();
}}
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>
${this.mimeOptionsTemplate()}
</et2-select>
<div
part="form-control-help-text"
id="help-text"
class="form-control__help-text"
aria-hidden=${hasHelpText ? 'false' : 'true'}
>
<slot name="help-text">${this.helpText}</slot>
</div>
${this.footerTemplate()}
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</et2-dialog>
`;
}
}
customElements.define("et2-vfs-select-dialog", Et2VfsSelectDialog);
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export type FileInfo = SearchResult &
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{
mime : string,
isDir : boolean,
// Full VFS path
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path? : string,
// Direct download link
downloadUrl? : string
}
/**
* We expect the server to respond with file data in this format
*/
interface FileResultsInterface extends SearchResultsInterface<FileInfo>
{
// Something like a redirect or link followed - server is sending us a "corrected" path
path? : string,
// The current directory is not writable
writable? : boolean
}